447224140 has 24 divisors (see below), whose sum is σ = 1024550352. Its totient is φ = 162626880.

The previous prime is 447224137. The next prime is 447224149. The reversal of 447224140 is 41422744.

It is a junction number, because it is equal to n+sod(n) for n = 447224099 and 447224108.

It is not an unprimeable number, because it can be changed into a prime (447224149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016199 + ... + 1016638.

It is an arithmetic number, because the mean of its divisors is an integer number (42689598).

Almost surely, 2^447224140 is an apocalyptic number.

It is an amenable number.

447224140 is an abundant number, since it is smaller than the sum of its proper divisors (577326212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447224140 is a wasteful number, since it uses less digits than its factorization.

447224140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032857 (or 2032855 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 447224140 is about 21147.6745766526. The cubic root of 447224140 is about 764.7305015650.

Adding to 447224140 its reverse (41422744), we get a palindrome (488646884).

The spelling of 447224140 in words is "four hundred forty-seven million, two hundred twenty-four thousand, one hundred forty".